<template>
    <header>
        <nav>
        <ul>
         <li>菜单一</li>
         <li>菜单二</li>
         <li>菜单三</li>
        </ul>
        </nav>

    </header>
</template>

<script setup>

</script>

<style  scoped>
header{
    height: 100px;
    background-color: lightcyan;
}
</style>